Acetylene-gas generator.



No. 828,399. PATBNTED 11111.14, 1906.

M. GOLDSTEIN.

` AGETYLENE GAS GENERATOR.

APPLICATION FILED sBPT.12. 1905.

rHIE NORM: PETER: ca., WASHINGNN. D. c.

UNITED STATES PATENT ornioii.

MYER GOLDSIEIN, OF JCHANNESBURG, TRANSVAAL.

ACETYLEN E-GAS GENERATOR'.

T @ZZ whom t may concern/.1

Be it known that I, MYER GoLDsTErN, a

citizen of the United States, residing at .Io-

vwith an external bead or rim a.

hannesburg, Transvaal, have invented cer-` tain new and usefulImprovements in Acetylene-Gas Generators, of which the following is aspecification.

'lhis invention relates to acetylene-gas genera-tors and lamps.

It is designed With the object of producing a generator which may bemade in. different sizes either for large or small lightinginstallations or as a street, table, or hand lamp for domestic, mining,or other purposes.

A generator or lamp constructed in accordance with my invention is ofextremely simple, compact, and efiicient construction and is adapted toreceive, if desired, a large charge of calcium carbid. Further, it isvery readily taken apart to clean it or toremove the spentcalcium-carbid charge and renew it when necessary. The volume orquantity of gas generated is automatically regulated by the demand orquantity consumed. The internal pressure set up when the quantity of gasgenerated exceeds the demand operates a valve which shuts off thewater-supply.

The construction and arrangement of a generator and lamp embodying myinvention is illustrated in the accompanying drawing, forming part ofthis specification, and I will now proceedto describe the same in detailby aid thereof.

The drawing represents a sectional elevation ofa generator and lampdesigned more particularly for miners use. It is adapted to be carriedin the hand or to be suspended in the undergroundworkings of a mine.

In the drawing, A represents an outer cylindrical or othersuitably-shaped vessel which constitutes the water-holder of thegenerator. The outer cylinder A is closed at the bottom a and at the`upper end is formed To the outside and at the top of the cylinder A aresoldered, riveted, or otherwise suitably fixed brackets a2, to which isattached the handle B. Inthe case of a portable lamp the handle B servesas a convenient means for suspending the lamp; but it will be evidentthat the handle may be fixed to the side of the cylinder A or in anyother convenient position. In the case of a stationary generator thehandle B would be dispensed with', and in the case Specification ofLetters Patent.

Application filed September 12, 1905. Serial No. 278,099.

Patented- Aug. 14, 190e.`

of a table orother similar lamp they cylinder A may form part of or bearranged inside an ornamental stand or base. Inside 'the cylinder A isarrangedi another and: preferablr concentric cylinder C, which.constitutes; the holder for the calcium carbid. The cylinder C is closedat the bottom cv and at the upper ehnd` is constructed with the externalbead or rim c.

Arranged inside the calcium-carbid holder C is the vertically-disposedpipel D. The pipe Dis rigidly fixed by means of the conical pieceofinetal d or otherwise to the bottom c of the cylinder C. The pipe- Dis closed at the bottom and at its upper end projects for somedistanceabove the levely of the top of the cylinder C. At its upperextremity it is formed with an external screwthread d. The pipe D, whichserves for taking off the gas from the interior of thecylinder C, isconstructed with one or more holes d2, forming inlets intothe pipe D.I

The calcium-carbid holder C is closed by means of a cover E, consistingof the topand bottom concavo-convex plates e e. rIlhe cover E isconstructed' round the rim e2 with a recess e3, formed between theflangeor The bottom plate e is sol-I the rim e2 of the cover E, isplaced'a packingi ring of rubber or other suitable resilient materialwhich serves for making a gas-tight joint with the bead, rim, or upperedge c of the calcium-carbid holder C.

The vertical pipe D projects through the cover E, and the latterisconstructed toi-form a recess d3 round the pipe D, whichv recesscommunicates with the interior of the cylinder C and through the hole orholes d2 with the interior of said pipe ID. The recess d3 serves as thepassage along which the gas iiows out of the cylinder C through the holeor holes d2 of the pipe D.. r

Round the upper end of the vertical pipe D and above the top ofthe-cover E is placed a metal washerf, and over the metal washerf awasherf, of leather or other suitable material, which makes a gas-tightjoint between the cp)ver E andthe upper end of the vertical i e p l:Cverthe externally-screwedfupper extrem- IOO IOC

elbow-piece H, into which is screwed a pipe J, which serves as theoutlet for the gas. On the outer extremity of the pipe J is screwed atap K, to which is xed the. burner L. The

gas entering the vertical pipe D through the hole or holes d2 is free topass through the socket F, nipple G, and elbow-piece H to the pipe J andfrom the latter through the tap K to the burner L.

A coverM is iit-ted into the upper end of the external cylinder A. Thiscover coinprises the top and bottom concavo-convex plates m m', whichare soldered or otherwise connected at the rim' m2. The top plate m isconstructed to project over the top of the bead or rim a. of thecylinder A, and the bottom plate m is turned downward to form an innerring ma, which fits the upper end of the cylinder The upper end of theso'cket F projects through a hole at the center of the bottom plate m,to which it may be soldered or otherwise attached.v The elbow-piece H islocated between the top and bottom plates m m of the cover, and the gasoutlet pipe J passes through a hole in the top plate m, to which 1t maybe soldered or otherwise suitably conneet-ed, In this manner the socketF, nipple o G1 elbow-piece H, gas-outlet pipe J, tap K,

-water to t-he calcium-carbid charge.

and burner are all attached to the cover M for the outer cylinder A. Ahandle N is attached to the top plate m of the cover M, which serves forremoving said cover and with it the calcium-carbid holder Cfrom thewater or external cylinder A.

At or in proximity t-o the top or upper edge ofthe cylinder C isattached the device which serves for controlling the admission of theThis consists of a casing O, to which is attached a pipe o, which servesfor conducting the water into said casing. The pipe o is preferably bentup for a suitable distance at the bottom. The casing O is formed with ascrewthreaded hole, through which is screwed a valve or screw o', whichserves for closing or adjusting the area ofthe opening forming the inletfor the water in the casing O. Into the casing O on the inside of thecylinder C is screwed a cylindrical piece o2, in which is fitted atubular piece o3. The tubular piece o3 communicates at one end with theinterior of the casing O and at the other end with a space o4, formedbetween it and the end of the cylindrical piece c2. ln this space o4 isplaced a ball-valve o5, which has a seating provided for it in the endof the tubular piece o3 round the hole communicating with the casing O.A hole o6 is formed in the end of the cylindrical piece o2, and a numberof small holes o7 are formed round the end of said cylindrical piece o2,which permit the water which passes from pipe o, casing O, tubular pieceo3 into the space o4 to pass from said space into the calcium-carbidholder C.

To remove the spent charge from the calcium-carbid cylinder C, the coverM of the water-holder-A is raised, which lifts with it the cylinder C.The cylinder C is then detached from the cover M by screwing the upperend of the vertical pipe D out of the lower end of the socket F. Thisallows the leather and metal washers ff and the cover E of the cylinderC to be removed. The spent charge is then removed from the cylinder Cand the cylinder washed out and a fresh charge inserted. The upper endof the vertical pipe D is then screwed back into the socket F, and afterturning the valve or screw 0 to open the water-inlet into the casing Othe water-holder A is partially filled with water. y The calcium-carbidholder is then lowered into the water-container A and the cover M fittedin position in said container A.

Sufficient water 'is placed in the waterholder A for the level to riseabove the level of the inlet controlled by the valve o5. The tank orcylinder A is preferably nearly illed. When the cylinder C has beenplaced in position in the water-container A, the water is then free topass by the pipe o into the casing O and along the hole in the tubularpiece o3 and to enter the calcium-carbid holder C by the holes o7 in thecylindrical piece o2, whereupon the acetylene gas is evolved. The gasthen passes into the recess d3 in the cover E and hole or holes d2 inthe vertical pipe D to the interior of said pipe and from the latterthrough the socket F, nipple G, and elbowpiece H to the pipe J, and fromthe latter under the control of the tap K to the burner L. In the eventof too large a quantity of the gas being generated it forces theball-valve 05 onto its seat in the end of the tubular piece o3 and socloses the hole and prevents any more water entering thecarbid-container until the pressure falls, and thus the quantity of gasgenerated is automatically regulated.

To put the lamp out of operation, the carbid-holder C is removed fromthe vessel A and the valve or screw o screwed down onto its seating inthe end of the pipe o, which prevents the admission of any more water tothe vessel C when the latter is placed back in the vessel A. It willalso be evident that the valve or screw owill serve as a means forregulating or controlling the admission of the IOO IIO

IIS

`water to the casing O, although its primary function is to shut off thewater-supply.

What I claim as myinvention, and desire to protect by Letters Patent,is-

1. In an acetylene-gas generator the combination with a water-holdingvessel and an internal calcium-carbid-holding vessel, said latter vesselbeing closed and provided with an exit in communication with thegas-supply pipe, a valve-casing consisting of two parts attached to theinternal vessel, one part comprising an external cylindrical pieceformed with a plurality of holes at the inner end in communication withthe internal vessel and an internal tubular piece in said cylindricalpiece arranged so that it forms a chamber at one end, the tubular piecebeing recessed tov form a valve-seat, a ball-valve located in saidchamber adapted to close the passage through said tubular piece when thepressure of the gas rises owing to the quantity generated exceeding thequantity consumed, the other part of said valve-casing being locatedexteriorly of said calcium-carbid-holding vessel, a pipe located insidethe water-container which at one end admits the water Jfrom said vesseland at the other end communicates with and conducts the water from saidvessel to the casing, and a screw-valve screwed through the outerportion of the casing and adapted to close the inner end of thesupply-pipe to shut off the water-supply, substantially as described.

2. In an acetylene-gas generator, the combination with an externalwater-containing vessel, of an internal calcium-carbid-holding vessel,an outlet-pipe for the gas provided with an aperture in said internalvessel, a cover for the internal vessel forming a recess round thegas-outlet pipe in communication with the interior of the pipe throughthe aperture in the latter, a valve-casing fixed to said internalvessel, a water-pipe for conducting the water to said casing, ascrew-valve for closing the water-inlet into the casing and a ball-valvein the valve-casing which is operated by the pressure 'of the gas whenthe volume being generated exceeds the volume being consumed,substantially as described.

3. In an acetylene-gas generator, the combination of a water-containingvessel, an internal calcium-carbid-holding vessel, a cover for saidvessel, packing between the cover and vessel for making a gas-tightjoint, said cover being constructed to form a central recess, agas-outlet pipe provided with an aperture in communication with therecess in the cover of the calcium-carbid-containing vessel, avalve-casing comprising two parts one within and the other without saidcalcium-carbid-holding vessel, the tubular piece inside the casingforming a chamber in communication with the calcium-carbid vessel, aball-valve located in said chamber and adapted to close the passagethrough said tubular piece, apipe connected to the external part of thecasing for conducting the water from the water-holder into said casingand a screw-valve carried by said casing and adapted to close the end ofthe water-pipe to shut off the water-supply to the valve-casing,substantially as described. i

4. In an acetylene-gas generator, the combination of thewater-containing vessel and the internal calcium-carbid-holding vessel,covers for each of said vessels, a verticallydisposed outlet-pipe forthe gasv fixed inside the calcium-carbid holder and projecting throughthe cover having a hole in communication with the calcium-carbid holder,a socket screwed over the outer extremity of the vertical pipe, packingbetween said socket and the cover for making a gas-tight joint with thelatter, the cover being constructed to form a chamber round thegasoutlet pipe inclosing the aperture and placing it in communicationwith the calcium-carbid holder, pipes connecting said socket to thegas-supply pipes or mains, packing carried by thevcover of thecalcium-carbid holder forming a 'gas-tight joint between the cover andholder, a valve-casing fixed to the calciumcarbid holder, a pipe carriedby and communicating with said casing for conducting the water from thewater-holder to said casing, a screw-valve for closing the inlet fromthe pipe to the casing to shut OI the water-supply, a ball-valve in thecasing which operates to close the water-inlet when the quantity of gasbeing produced exceeds the quantity being consumed, substantially asdescribed.

5. In an acetylene-gas generatorand lamp, the combination of thewater-holder A, the cover M comprising the plates m fm', the latterJforming the ring m3 and the former the rim iitting the upper edge ofthe vessel A, the brackets a2 the handles B and N, the internal vessel Cfor the calcium carbid, the vertical outlet-pipe D and the cone d forfixing said pipe inside the vessel C, the cover E comprising the platese e and the ring e, the packing e3 arranged in the annular recess in thecover E, said packing forming a gas and water tightjoint with the rim cof the vessel C, said cover being constructed with the recess d3 and thepipe D with the aperture d2, said aperture and recess placing pipe D incommunication with vessel C, the socket F IOO IIO

screwed over the upper end of pipe D above sel C in communication withthe chamber o4, In Witness whereof I have hereunto set my the ball-Valve05 in the chamber 0*7 the pipe o hand inthe presence of two subscribingWitcurved upward at the bottom fixed to and nesses.

communicating with the casing O7 and the MYER GOLDSTEIN. screw-valve ocarried by easing O and adapt- Witnesses:

ed to close the pipe o, substantially as de- CHAS. OVENDALE,

scribed and shown in the drawing. R. OVENDALE.

